A lot depends on budget, but mostly it depends on what your usage is going to be. Once you find out which type RV best fits your usage needs, you can usually find something that will fit your budget (within reason of course). A little older unit will get it in a reasonable budget.
Class A's are wonderful, but what are your reasons for choosing one? Will it really best fit your rv'ing needs? Often times a Class C is best when rv'ing with kids, unless you go with the bunk style Class A.
In my opinion, the best way to narrow a search to one type of RV, is to read this forum inside out, that is what I did.
Keep us posted, keep asking questions, and keep reading the forum!